page_title: List of Oslo Metro lines
section_title: List
hierarchical_section_title: List of Oslo Metro lines / List
caption_attribution_description: English: The Berg subway station in Oslo, Norway. Date: 2006-03-10. Photographer: eao. Norsk bokmål: Berg stasjon i Oslo. Dato: 2006-03-10. Fotograf: eao.
context_page_description: The Oslo Metro is a rapid transit system serving Oslo and Bærum in Norway. The system is municipally-owned by Sporveien, and operated by its subsidiary Sporveien T-banen under contract to Ruter, the Oslo public transport authority. The metro has a daily ridership of 200,000, and serves 101 stations. The system consists of eight lines that operate as branches from the Common Tunnel—the shared section that runs 4.8 kilometers through the city center. In addition, the Ring Line operates in a loop north of the city center. There are six train services, numbered 1 through 6, that each operate from one branch via the city center to another branch or to the Ring Line. All services run every 15 minutes. Each branch has one service that operates to its terminus, except for the Lambertseter Line that has two.
  The first part of the metro was the Holmenkollen Line, that opened as light rail in 1898. The Røa Line followed as a branch in 1912. The system became the first Nordic underground railway in 1928, when the underground line to Nationaltheatret was opened. The Østensjø Line opened in 1923, the Kolsås Line in 1924, and the Sognsvann Line in 1934.
context_section_description: The following table presents the eleven lines of the Oslo Metro. They are chronologically sorted by the date of the first section of line to open. The service column indicates which of the six numbered services operates on most of the lines. Services are omitted from lines where they serve only one or two stations. The date indicates the official opening date of the line on the section noted in the fourth column. Sections with blue background indicate lines that were opened as tramways, while white background indicates the line was converted to or built as metro standard. The length column indicates the total length of the line at the time of opening or upgrade, and the extension column indicates the length of the extension. The station column indicates the number of stations on the line after the opening of each extension or upgrade. Unless specified otherwise, the lines are metro standard.
caption: Berg Station on the Sognsvann Line
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